mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-18 02:01:39 +00:00
28 lines
524 B
Text
28 lines
524 B
Text
|
// YUV->RGB conversion fragment shader adapted from
|
||
|
|
// http://www.fourcc.org/fccyvrgb.php: Want some sample code?
|
||
|
|
// direct link: http://www.fourcc.org/source/YUV420P-OpenGL-GLSLang.c
|
||
|
|
#version 120
|
||
|
|
|
||
|
|
uniform sampler2D tex;
|
||
|
|
|
||
|
|
void main(void) {
|
||
|
|
|
||
|
|
float r,g,b,y,u,v;
|
||
|
|
vec3 yuv;
|
||
|
|
|
||
|
|
yuv = texture2D(tex, gl_TexCoord[0].st).rgb;
|
||
|
|
y = yuv.r;
|
||
|
|
u = yuv.g;
|
||
|
|
v = yuv.b;
|
||
|
|
|
||
|
|
y = 1.1643*(y-0.0625);
|
||
|
|
u = u-0.5;
|
||
|
|
v = v-0.5;
|
||
|
|
|
||
|
|
r = y + 1.5958*v;
|
||
|
|
g = y - 0.39173*u - 0.81290*v;
|
||
|
|
b = y + 2.017*u;
|
||
|
|
|
||
|
|
gl_FragColor = vec4(r,g,b,1.0);
|
||
|
|
};
|